C++ Program to Check Whether Number is Even or Odd

Code 1: Check Whether Number is Even or Odd using if else

#include <iostream>
using namespace std;
int main()
{
    int n;
    cout << "Enter an integer: ";
    cin >> n;
    if ( n % 2 == 0)
        cout << n << " is even.";
    else
        cout << n << " is odd.";
    return 0;
}

Output

Enter an integer: 23
23 is odd.

Code 2: Check Whether Number is Even or Odd using ternary operators

#include <iostream>
using namespace std;
int main()
{
    int n;
    cout << "Enter an integer: ";
    cin >> n;
   
    (n % 2 == 0) ? cout << n << " is even." :  cout << n << " is odd.";
   
    return 0;
}